María G. Sada

María G. "Chata" Sada (December 5, 1884 - July 13, 1973) was a Mexican-American businesswoman, informal educator and midwife in Boquillas Canyon.

[3] After securing a permanent visa, she moved to the Texas side of the Rio Grande where she and her husband built an adobe house that became a general store and cafe.

[5] Sada was in charge of the business, known as "Chata's Place," because her husband ran a silver mine in Coahuila.

[6][7] In order to improve business, Sada learned English so she could better serve various people who came to Big Bend.

[6] On July 7, 1960, she was invited to a ceremony at Big Bend National Park where she was greeted and remembered by the community.